Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
468-05-012 ISMRM Abstract

Feasibility Study of UTE-Image-based SAR Estimation Without B1 mapping at 3T

Primary: Physics & Engineering - Safety
Secondary: Contrast Mechanisms - Electromagnetic Tissue Properties
468-05-012 · Safety · Tuesday, 12 May, 4:00 PM–4:55 PM · Digital Posters Row I
Keywords: Electrical Conductivity SAR EPT Local SAR Ultra-short Echo Time (UTE)
Accepted
Zhongzheng He 1, Guillaume Paillart2, Julien Lamy1, Freddy Odille2, Paulo Loureiro de Sousa1
1ICube, CNRS, Université de Strasbourg, Strasbourg, France
2IADI U1254, INSERM and Université de Lorraine, Nancy, France
Presenting Author: Zhongzheng He

Synopsis

Motivation:
Goals:
Approach:
Results:
Full abstract & presentation

The full text, figures, and any recorded presentation for this abstract are not shown here. Log in if you are a member or registered attendee with access.

Full abstracts, figures, and presentations for Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition are available to registered attendees. This content becomes freely available to the public roughly two years after the meeting.

To request or purchase access, contact the ISMRM Central Office at info@ismrm.org.

Log in

References

1. Thomas M. Fiedler, Mark E. Ladd, and Andreas K. Bitz. “SAR Simulations & Safety”. In: NeuroImage 168 (Mar.2018), pp. 33–58. issn: 10538119. doi: 10.1016/j.neuroimage.2017.03.035. [doi]
2. U. Katscher et al. “Determination of Electric Conductivity and Local SAR Via B1 Mapping”. In: IEEE Transactions on Medical Imaging 28.9 (Sept. 2009), pp. 1365–1374. issn: 0278-0062, 1558-254X. doi:10.1109/TMI.2009.2015757. [doi]
3. T. Voigt et al. “Patient-individual local SAR determination: In vivo measurements and numerical validation”. In: Magnetic Resonance in Medicine 68.4 (Oct. 1, 2012). Publisher: John Wiley & Sons, Ltd, pp. 1117–1126. issn: 0740-3194. doi: 10.1002/mrm.23322. [doi]
4. Jessica A. Martinez et al. “Feasibility Study of Subject-specific, Brain Specific-absorption-rate Maps Retrieved from MRI Data”. In: Magnetic Resonance in Medicine (May 24, 2025), mrm.30547. issn: 0740-3194, 1522-2594. doi: 10.1002/mrm.30547. [doi]
5. Jiaen Liu et al. “Electrical Properties Tomography Based on $B {{1}}$ Maps in MRI: Principles, Applications, and Challenges”. In: IEEE Transactions on Biomedical Engineering 64.11 (Nov.2017), pp. 2515–2530. issn: 0018-9294, 1558-2531. doi: 10 . 1109 / TBME . 2017 . 2725140.
6. Seung-Kyun Lee et al. “Tissue Electrical Property Mapping from Zero Echo-Time Magnetic Resonance Imaging”. In: IEEE transactions on medical imaging 34.2 (Feb. 2015), pp. 541–550. issn:0278-0062. doi: 10 . 1109 / TMI . 2014 . 2361810.
7. Paul Soullié et al. “MR electrical properties imaging using a generalized image-based method”. In: Magnetic Resonance in Medicine 85.2 (Feb. 2021), pp. 762–776. issn: 0740-3194, 1522-2594.doi: 10.1002/mrm.28458. url: https://onlinelibrary.wiley.com/doi/10.1002/mrm.28458 [doi]
8. Alessandro Arduino et al. “Alternative Approaches to Magnetic Resonance-Based Electric Properties Tomography and Local Specific Absorption Rate Estimation”. In: IEEE Transactions on Magnetics 53.2 (Feb. 2017), pp. 1–8. issn: 0018-9464, 1941-0069. doi: 10.1109/TMAG.2016.2621731. [doi]
9. Jessica A. Martinez et al. “Evaluation and Correction of $B {1}ˆ+$-Based Brain Subject-Specific SAR Maps Using Electrical Properties Tomography”. In: IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology 7.2 (June 2023), pp. 168–175. issn: 2469-7249, 2469-7257. doi: 10.1109/JERM.2023.3236153. [doi]
10. Ulrich Katscher, Christian Findeklee, and Tobias Voigt. “B 1 -based specific energy absorption rate determination for nonquadrature radiofrequency excitation”. In: Magnetic Resonance in Medicine 68.6 (Dec. 2012), pp. 1911–1918. issn: 0740-3194, 1522-2594. doi: 10 . 1002 / mrm . 24215.
11. Lavielle, A., Boux, F., Deborne, J., Pinaud, N., Dufort, S., Verry, C., Grand, S., Troprès, I., Vecco-Garda, C., Le Duc, G., Mornet, S. and Crémillieux, Y. (2023), T1 Mapping From MPRAGE Acquisitions: Application to the Measurement of the Concentration of Nanoparticles in Tumors for Theranostic Use. J Magn Reson Imaging, 58: 313-323. https://doi.org/10.1002/jmri.28509 [doi]
12. Akifumi Hagiwara et al. “Age-Related Changes in Relaxation Times, Proton Density, Myelin, and Tissue Volumes in Adult Brain Analyzed by 2-Dimensional Quantitative Synthetic Magnetic Resonance Imaging”. In: Investigative Radiology 56.3 (Mar. 2021), pp. 163–172. issn: 1536-0210, 0020-9996. doi: 10.1097/RLI.0000000000000720. [doi]
13. T. G. Meerbothe et al. “A database for MR-based electrical properties tomography with in silico brain data—ADEPT”. In: Magnetic Resonance in Medicine 91.3 (2024), pp. 1190–1199. doi: https://doi.org/10.1002/mrm.29904. 10.1002/mrm.29904. [doi]
14. Z He et al. "Rigorous Uncertainty Quantification for Helmholtz-based EPT: Application to Uncertainty-Guided Post-processing". ISMRM 2026. Code avalaible: https://github.com/zhongzheng-he/uqEPT

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/468-05-012